Car-coupling



UNITED STATES PATENT FFICE.

WILLIAM F. \VHITE, OF CHICAGO, ILLINOIS CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 514,296, dated February6, 1894.

Application filed June 24,1893. Serial No. 478.750. (No model-i To allwhom it may concern.-

. and the operator is enabled to readily couple and uncouple the carstween the cars.

The invention consists principally of a pivoted knuckle held on thedrawhead and provided with an extension adapted to be engaged by theforked end of the coupling pin.

The invention also consists of certain parts and details, andcombinations of the same, as will be hereinafter described and thenpointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of the improvement.

without stepping be- Fig. 2 is a sectional side elevation of the same onthe line 2-2 of Fig.1.

Fig. 3 is a similar view of the same withthe coupling open and thecoupling pin resting on the top of the extension; and Fig. 4 is a planview of the knuckle.

The improved car coupling is provided with the usual drawhead A formedat its front end with the horn A arranged on one side and a pivot Blocated at the opposite side and on which the knuckle O is pivoted. VThe free end of the pivoted knuckle G is provided with the usualapertured lugs 0 adapted to receive a pin for connecting the knucklewith an ordinary link. The knuckle O is also provided with an extension0 extending rearwardly from the pivot end of the knuckle, as plainlyshown in Fig. 4, the said extension being formed at its free end withthe beveled portion 0 plainly indicated in Figs. 2 and 3.

The extension 0 is adapted to be engaged by the forked end of a couplingpin Dunder the control of the operator bya suitable mechanism located onthe end of the car, as indicated in dotted lines in Fig. 3. The pin D isprovided with the forward prong D adapted to engage the front edge ofthe beveled portion 0 of the extension 0 or to rest on top thereof, asindicated in Fig. 3. The pinD is also provided with the horizontal arm Dfrom which extends downwardly the prong D arranged parallel to the prongD and provided at its lower end with a beveled offset B, see Figs. 2 and3.

The prongs D and D are adapted to engage apertures A and A formed in thebottom of the drawhead A, and the upper part of the pin D extendsthrough an opening A in the top of the drawhead. The extension 0 is freeto move laterally in a recess A formed in the drawhead proper, the saidopenings A A and A leading into the recess, as will be readilyunderstood by reference to Figs. 2 and 3.

The top edge of the horizontal arm D of the pin D is formed with asemi-circular recess adapted to engage a correspondingly-shaped lug Ehung on a pivot E securedin the sides of the drawhead A at the topthereof, as illustratcd in the drawings, Figs. 1, 2 and 3.

The base of the recess in the arm D has a beveled edge, as shown indotted lines in Fig. 3, and the lower edge of the lug E is also beveledas shown in full lines in Fig. 2. Now, it will be seen that when theknuckle O is in the position as illustrated in Figs. 1 and 2, the pin Dis in a vertical position and engages withits prongs D and D the frontand rear edge of the beveled portion 0 of the extension C projectingfrom the knuckle C. Now, when the knuckle is in this coupling positionand itis desired to uncouple, the operator exerts a pull on the pin D inan upward direction, so that the pin assumes the position shown in Fig.3, that is,its prong D is withdrawn from the front edge of the beveledportion 0 while the beveled ofiset D of the prong D engages the beveledportion 0 and thereby imparts a swinging motion to the extension in aforward direction, whereby the knuckle O is caused to open.

It is understood that when the pin D is pulled upward the beveled edgeof the recess in the arm D engages the lug E, so that the said pinassumes an inclined position, the lug E being the fulcrum for the pin.When the knuckle C is in the open position, the prongD rests on the topof the beveled portion and when two cars are now coupled and theextension is struck by the opposing drawhead, then the extension swingsrearwardly so that finally the prong D drops down into the positionshown in Fig. 2, it being understood that the pin D is caused to assumea vertical position by the beveled portion 0 acting on the lug D of theprong D Thus the knuckle C is securely locked in position by the pin D.

It will be seen that this car coupling is very simple and durable inconstruction, is easily manipulated, and does not require the operatorto step between the cars while coupling or uncoupling the same.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. A car coupling comprising a pivoted knucklehaving a rear extension, a lock pin adapted to engage said extension, astop or abutment portion on the drawhead, said pin held for verticalmovement and adapted to engage said abutment and be swung outward,whereby it will be moved from a locked engagement with the knuckleextension, all substantially as shown and described.

2. A car coupling comprising a pivoted knuckle having an extensionformed with a beveled under face, a coupling-pin having a forkedextension adapted to embrace such extension when in its coupledposition, a rest portion in the drawhead for the rear fork of the pin,when elevated to its uncoupled posr tion, said rear fork having abeveled portion adapted to be engaged by the beveled face of the knuckleextension when the knuckle 1S swung inward, substantially as and for thepurposes shown and described.

3. In a car coupling of the kind described in combination, the drawhead, the pivoted knuckle formed with a rear extension, a pivotedabutment, the forked coupling pin having a seat portion in its upperpart, adapted to engage the abutment when elevated and be swung forward,all arranged substantially as and for the purposes shown and described.

4. A car coupling, comprising a knuckle pivoted to the drawhead andprovided with an extension having a beveled portion, a pin having twoparallel prongs adapted to engage the front and rear edges of the saidextension, the rearmost of the said prongs being formed with a lug forengaging the beveled portion of the said extension, and a lug arrangedin the drawhead and adapted to be engaged by the said pin to impart aswinging motion to the latter when a pull is exerted on the pin,substantially as shown and described.

WILLIAM F, WHITE.

Witnesses:

ToM II. ROBINSON, A. T. STAHL.

